Set The Programmable Room Thermostat; Preliminary Electrical Checks; Check Operation Of The - Heatrae Sadia ELECTROMAX Installation & Servicing Instructions Manual

7.4 Set The Programmable Room
Thermostat
a. Fit the batteries supplied to the
Programmable Room Thermostat.
The battery compartment is located
behind the hinged cover under a snap
fit panel. Ensure the batteries are
inserted with the correct polarity (i.e.
"+" to "+", "-" to "-".)
b. Using the instructions supplied with
the Programmable Room Thermostat
set the time and day on the clock
display.
c. The Programmable Room Thermostat
is supplied with a number of factory
preset programmes, these are listed
in the instruction leaflet. These can be
reset to other periods depending on
the users requirements.
d. NOTE: To obtain lower running
costs it is recommended that
central heating on times be
programmed to co-incide (wherever
feasible) with any "Off-Peak" tariff
periods available during the day.
The Economy 10 tariff will provide at
least two periods during the day at
a lower cost "Off-Peak" rate, refer to
Table 2 for details of the available "Off-
Peak" times from various electricity
suppliers. Heating times can, of
course, be programmed to run outside
these times.
e. NOTE: The Programmable Room
Thermostat does not control the
Domestic Hot Water (DHW) heating
times.

7.5 Preliminary Electrical Checks

a. Check all electrical connections are
tight. Loose connections can cause
over-heating of terminals and the
possibility of a fire.
b. Check all earth bonding links
are connected, are tight and un-
damaged.
24 Installation & Servicing Instructions
c. The electrical system should be
checked for Earth Continuity, Short
Circuits, Polarity and Resistance to
Earth.
d. The immersion heaters are factory set
to give a hot water storage temperature
of approx. 60
4 and 5 on the thermostat). The full
temperature adjustment range is from
10 to 70 C (1 to 5 on the thermostat).
o o
If required the thermostats should
be readjusted by removing the
immersion heater covers and rotating
the thermostat adjustment knob
(see Diagram 18) using a flat bladed
screwdriver. Replace the covers
before operating the unit.
Diagram 18 Immersion Heater
Thermostat
Temperature
Adjustment
7.6 Check Operation of the Electric
Boiler
a. Switch on the 24 Hour electrical supply
and Boiler supply MCB's. Switch on
the isolation switches.
b. Switch on the CH "on" switch (see
Diagram 19). The switch should be
illuminated when on.
c. Set the "FLOW TEMP" adjustment (see
Diagram 19) to minimum position.
C (between graduations
o
Thermal Cut-out
Reset Button
Thermostat